//
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/boostorg/beast
//

#ifndef BEAST_HTTP_FIELD_HPP
#define BEAST_HTTP_FIELD_HPP

#include <beast/core/detail/config.hpp>
#include <beast/core/string.hpp>
#include <iosfwd>

namespace beast {
namespace http {

enum class field : unsigned short
{
    unknown = 0,

    a_im,
    accept,
    accept_additions,
    accept_charset,
    accept_datetime,
    accept_encoding,
    accept_features,
    accept_language,
    accept_patch,
    accept_post,
    accept_ranges,
    access_control,
    access_control_allow_credentials,
    access_control_allow_headers,
    access_control_allow_methods,
    access_control_allow_origin,
    access_control_expose_headers,
    access_control_max_age,
    access_control_request_headers,
    access_control_request_method,
    age,
    allow,
    alpn,
    also_control,
    alt_svc,
    alt_used,
    alternate_recipient,
    alternates,
    apparently_to,
    apply_to_redirect_ref,
    approved,
    archive,
    archived_at,
    article_names,
    article_updates,
    authentication_control,
    authentication_info,
    authentication_results,
    authorization,
    auto_submitted,
    autoforwarded,
    autosubmitted,
    base,
    bcc,
    body,
    c_ext,
    c_man,
    c_opt,
    c_pep,
    c_pep_info,
    cache_control,
    caldav_timezones,
    cancel_key,
    cancel_lock,
    cc,
    close,
    comments,
    compliance,
    connection,
    content_alternative,
    content_base,
    content_description,
    content_disposition,
    content_duration,
    content_encoding,
    content_features,
    content_id,
    content_identifier,
    content_language,
    content_length,
    content_location,
    content_md5,
    content_range,
    content_return,
    content_script_type,
    content_style_type,
    content_transfer_encoding,
    content_type,
    content_version,
    control,
    conversion,
    conversion_with_loss,
    cookie,
    cookie2,
    cost,
    dasl,
    date,
    date_received,
    dav,
    default_style,
    deferred_delivery,
    delivery_date,
    delta_base,
    depth,
    derived_from,
    destination,
    differential_id,
    digest,
    discarded_x400_ipms_extensions,
    discarded_x400_mts_extensions,
    disclose_recipients,
    disposition_notification_options,
    disposition_notification_to,
    distribution,
    dkim_signature,
    dl_expansion_history,
    downgraded_bcc,
    downgraded_cc,
    downgraded_disposition_notification_to,
    downgraded_final_recipient,
    downgraded_from,
    downgraded_in_reply_to,
    downgraded_mail_from,
    downgraded_message_id,
    downgraded_original_recipient,
    downgraded_rcpt_to,
    downgraded_references,
    downgraded_reply_to,
    downgraded_resent_bcc,
    downgraded_resent_cc,
    downgraded_resent_from,
    downgraded_resent_reply_to,
    downgraded_resent_sender,
    downgraded_resent_to,
    downgraded_return_path,
    downgraded_sender,
    downgraded_to,
    ediint_features,
    eesst_version,
    encoding,
    encrypted,
    errors_to,
    etag,
    expect,
    expires,
    expiry_date,
    ext,
    followup_to,
    forwarded,
    from,
    generate_delivery_report,
    getprofile,
    hobareg,
    host,
    http2_settings,
    if_,
    if_match,
    if_modified_since,
    if_none_match,
    if_range,
    if_schedule_tag_match,
    if_unmodified_since,
    im,
    importance,
    in_reply_to,
    incomplete_copy,
    injection_date,
    injection_info,
    jabber_id,
    keep_alive,
    keywords,
    label,
    language,
    last_modified,
    latest_delivery_time,
    lines,
    link,
    list_archive,
    list_help,
    list_id,
    list_owner,
    list_post,
    list_subscribe,
    list_unsubscribe,
    list_unsubscribe_post,
    location,
    lock_token,
    man,
    max_forwards,
    memento_datetime,
    message_context,
    message_id,
    message_type,
    meter,
    method_check,
    method_check_expires,
    mime_version,
    mmhs_acp127_message_identifier,
    mmhs_authorizing_users,
    mmhs_codress_message_indicator,
    mmhs_copy_precedence,
    mmhs_exempted_address,
    mmhs_extended_authorisation_info,
    mmhs_handling_instructions,
    mmhs_message_instructions,
    mmhs_message_type,
    mmhs_originator_plad,
    mmhs_originator_reference,
    mmhs_other_recipients_indicator_cc,
    mmhs_other_recipients_indicator_to,
    mmhs_primary_precedence,
    mmhs_subject_indicator_codes,
    mt_priority,
    negotiate,
    newsgroups,
    nntp_posting_date,
    nntp_posting_host,
    non_compliance,
    obsoletes,
    opt,
    optional,
    optional_www_authenticate,
    ordering_type,
    organization,
    origin,
    original_encoded_information_types,
    original_from,
    original_message_id,
    original_recipient,
    original_sender,
    original_subject,
    originator_return_address,
    overwrite,
    p3p,
    path,
    pep,
    pep_info,
    pics_label,
    position,
    posting_version,
    pragma,
    prefer,
    preference_applied,
    prevent_nondelivery_report,
    priority,
    privicon,
    profileobject,
    protocol,
    protocol_info,
    protocol_query,
    protocol_request,
    proxy_authenticate,
    proxy_authentication_info,
    proxy_authorization,
    proxy_connection,
    proxy_features,
    proxy_instruction,
    public_,
    public_key_pins,
    public_key_pins_report_only,
    range,
    received,
    received_spf,
    redirect_ref,
    references,
    referer,
    referer_root,
    relay_version,
    reply_by,
    reply_to,
    require_recipient_valid_since,
    resent_bcc,
    resent_cc,
    resent_date,
    resent_from,
    resent_message_id,
    resent_reply_to,
    resent_sender,
    resent_to,
    resolution_hint,
    resolver_location,
    retry_after,
    return_path,
    safe,
    schedule_reply,
    schedule_tag,
    sec_websocket_accept,
    sec_websocket_extensions,
    sec_websocket_key,
    sec_websocket_protocol,
    sec_websocket_version,
    security_scheme,
    see_also,
    sender,
    sensitivity,
    server,
    set_cookie,
    set_cookie2,
    setprofile,
    sio_label,
    sio_label_history,
    slug,
    soapaction,
    solicitation,
    status_uri,
    strict_transport_security,
    subject,
    subok,
    subst,
    summary,
    supersedes,
    surrogate_capability,
    surrogate_control,
    tcn,
    te,
    timeout,
    title,
    to,
    topic,
    trailer,
    transfer_encoding,
    ttl,
    ua_color,
    ua_media,
    ua_pixels,
    ua_resolution,
    ua_windowpixels,
    upgrade,
    urgency,
    uri,
    user_agent,
    variant_vary,
    vary,
    vbr_info,
    version,
    via,
    want_digest,
    warning,
    www_authenticate,
    x_archived_at,
    x_device_accept,
    x_device_accept_charset,
    x_device_accept_encoding,
    x_device_accept_language,
    x_device_user_agent,
    x_frame_options,
    x_mittente,
    x_pgp_sig,
    x_ricevuta,
    x_riferimento_message_id,
    x_tiporicevuta,
    x_trasporto,
    x_verificasicurezza,
    x400_content_identifier,
    x400_content_return,
    x400_content_type,
    x400_mts_identifier,
    x400_originator,
    x400_received,
    x400_recipients,
    x400_trace,
    xref,
};

/** Convert a field enum to a string.

    @param f The field to convert
*/
BEAST_DECL
string_view
to_string(field f);

/** Attempt to convert a string to a field enum.

    The string comparison is case-insensitive.

    @return The corresponding field, or @ref field::unknown
    if no known field matches.
*/
BEAST_DECL
field
string_to_field(string_view s);

/// Write the text for a field name to an output stream.
inline
std::ostream&
operator<<(std::ostream& os, field f)
{
    return os << to_string(f);
}

} // http
} // beast

#ifdef BEAST_HEADER_ONLY
#include <beast/http/impl/field.ipp>
#endif

#endif
